meisner Using the Particle Argon and building for the Xenon board works fine. The resulting “merged.hex” file once flashed causes the fan to spin every 60 seconds. So I assume it is working.

Excellent it looks like it’s working!

meisner Nothing on the SWD serial console. I began to look into adding MQTT to push the data, but don’t have the energy for that right now. Even looking into Zephyr’s support to blink an LED is overly complicated.

You’ll need to use Segger RTT for the particle boards. There is a Makefile in the root directory which you can use to start a server and console. This works on OS X but should be similar for other platforms.

For programmingI use nrfjprog which you can get here: https://www.nordicsemi.com/Products/Development-tools/nrf-command-line-tools (It’s essentially a wrapper for J-Link’s software)

By the way here’s a link to getting half of the equation for Zephyr on an Argon:

https://learn.adafruit.com/adding-a-wifi-co-processor-to-circuitpython-esp8266-esp32/program-particle-argon

        jaredwolff You’ll need to use Segger RTT for the particle boards.

        OK thanks for all the help so far Jared, but I need to take a different path here. It seems like at many turns I need to buy another piece of HW or spend a good deal of time learning something I had no interest in. My goal was air quality info to be sent via MQTT. I have gone down so many tangential paths that this is taking too much time.

        jaredwolff By the way here’s a link to getting half of the equation for Zephyr on an Argon:

        https://learn.adafruit.com/adding-a-wifi-co-processor-to-circuitpython-esp8266-esp32/program-particle-argon

        Yes…even this article you cited is about replacing the stock firmware with CircuitPython … already saw this and determined, “Nope…don’t want to go down that path.”

        Instead, I am looking at my first idea of using the AQW with an Adafruit Feather (with wifi support) and the Arduino IDE. I just need to understand the AQW interface & API better now.

              meisner Instead, I am looking at my first idea of using the AQW with an Adafruit Feather (with wifi support) and the Arduino IDE. I just need to understand the AQW interface & API better now.

              Got it. Sorry it’s taking longer than expected. I have a Huzzah32 here. Let me see if I can get the AQW code working on it. I’ll likely be able to get it working with Golioth fairly easily if you’re open to using something like that. They have a generous dev tier which is sufficient if you’re doing this for hobby purposes.

                  6 days later

                  OK…success!

                  I have had the AQW running (in the 3D printed enclosure you designed) for most of the day today using the HUZZAH32 and the Arduino IDE. Here’s the project:

                  https://github.com/smeisner/AirQualityWing

                  Let me know if you have any thoughts. This is the first version of the code, so improvements would be welcomed!! There is a “to do” list at the end of the README as well.

                    2 months later

                    Just added support for OTA upgrades, OLED display and telnet session for diags to the github project.

                    https://github.com/smeisner/AirQualityWing

                    …in case anyone is following along. I have modified STL files to accommodate the display as well, but haven’t uploaded them yet. Coming soon.

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